Spray pump



Aug. 13, 1935.

E. W. MOODY SPRAY PUMP Filed May 8. 1934 lllllllh llll , INVENTOR. EARL W. MOODY WMDJW.

ATTORNEYS.

Patented Aug. 13, 1935 UNITED STATES PATENT OFFICE 7 Claims.

My invention relates to spray pumps, and it has for a purpose the provision of a spray pump particularly adapted, although not necessarily, for use in connection with a bottle or other portable container for dispensing therefrom a glass cleaning liquid in spray form to facilitate covering the surface of a window, windshield or mirror with the cleaning liquid preparatory to cleaning the surface of the glass.

It is also a purpose of my invention `to provide a spray pump of the above described character, which s functionally characterized by the fact that the pump is supported solely from the neck or spout of the bottle or other container with which it is associated, and, hence, independently of the inner walls of the bottle so that the contour of such walls can be disregarded.

A further purpose of my invention is the provision of a spray pump in which the plunger thereof which is manually operated to expel the liquid through a spray nozzle carried thereby, is rotatable in its support to permit circumferential adjustment of the nozzle on the bottle to permit the liquid stream ejected from the nozzle to be projected in any desired direction.

I will describe only one form of spray pump embodying my invention, and will then point out the novel features thereof in claims.

In the accompanying drawing:

Fig. 1 is a View showing in side elevation one form of spray pump embodying my invention and applied to a bottle, the latter being shown in section, except the neck thereof.

Fig. 2 is an enlarged sectional view taken on the line 2-2 of Fig. l.

Fig. 3 is a transverse sectional View taken on the line 3--3 of Fig.'2.

In carrying out my invention, I provide a cap C made of metal and threaded interiorly to screw on to the neck I5 of a conventional bottle A or the neck of any other suitable containerfor a liquid. lThis cap C is formed centrally with an opening I6 in which the upper end of a pump barrel B is secured by extending the metal of which the barrel is formed to provide an annular collar I1 at the upper end of the barrel, and a shoulder I8 spaced from the collar and between which the cap is securely clamped.

To seal the joint between the bottle neck and cap as Well as the joint between the cap and the barrel, a gasket I9 and a metal washer 20 are secured between the cap and shoulder I8. As shown in Fig. 2, the metal washer 20 bears against the upper edge of the bottle neck to protect the gasket I9 which is formed of cork or any other suitable compressible material.

The barrel B has a smooth inner bore in which a plunger G has a sliding fit to permit reciprocation of the plunger in the barrel, and also a rotating fit therein in order to permit adjustment of the plunger circumferentially in the barrel for a purpose to be described hereinafter. lThe plunger G is hollow and its bore is of such diameter as to slidably and rotatably receive a piston P. At its upper end the plunger is formed with a `charnber 2| communicating with the boreof the plunger and of a diameter reduced to form an intervening annular shoulder 22.

Adjacent the chamber 2| the plunger is tapped radially to form an opening in which a spray nozzle 23 has a driving t. Thus, the orifice of the nozzle is in communication with the interior of the plunger through the chamber 2| to allow liquid in the plunger to be expelled therefrom in tion as the nozzle, and thus the operator is apprised of the direction in which the stream of liquid will be emitted from the nozzle.

The piston P is formed centrally with a port 25 having a conical seat 26 at its upper end for a ball valve 21. A pair of lugs 28 is formed on the lower end of the plunger G to engage the underside of the piston P, and thus define the uppermost posi-Ey tion of the plunger in the barrel B. The plunger is yieldably urged to this uppermost position by means of a coiled expansible spring 29 which abuts the shoulder 22 at its upper end, and the piston P at its lower end.

For placing the piston port 25 in communication with the liquid contained in the bottle A, a tube T at its upper end is extended into the lower end of the port 25 so as to have a driving t therein. This tube is of such length that its lower end terminates in spaced relation to the bottom of the bottle A. It is xed centrally in the barrel B and Vsupported by the latter through the provision of a pin 30 As clearly shown in Fig. 2, the pin 30 extends transversely through the tube and barrel thus holding the tube in fixed position vertically in the barrel and thereby holding the piston P in iixed position vertically so that it may function in conjunction with the lugs 28 to define the uppermost position of the plunger G.

In practice, the spray pump is applied to the bottle by rst inserting the tube T and the barrel B into the bottle neck, and then screwing the cap C onto the neck. Thus the pump is iixed in centered position in the bottle neck with the plunger projecting from the cap, and the lower end of the tube submerged in the liquid.

In operation the operator grips the bottle in one hand and the index nger thereof reposes on the seat 24. Now by actuating the linger, the plunger is intermittently depressed and alternately elevated by the spring 29, thereby eiecting reciprocation of the plunger. Under such reciprocation of the plunger the valve 21 is alternately opened and closed to ultimately draw liquid upwardlyv through the tube and force it outwardly through the nozzle in the form of a line stream. This liquid stream is of such neness that the surface of any glass can be thinly and uniformly sprayed to properly cover the glass surface preparatory to cleaning thereof.

It is important to note that the plunger being rotatable in the barrel can be adjusted circumferentially to position the nozzle at any point within a circle. Thus, while gripping the bottle the operator can easily adjust the nozzle to cause the liquid stream to be projected in any desired direction.

Although I have herein shown and described only one form of spray pump embodying my invention it is to be understood that various changes and modications may be made herein wtihout departing from the spirit of my invention and the spirit and scope of the appended claims.

I claim:

l. In combination, a liquid container having a neck; a spray pump having, a cap on the neck formed with an opening, a barrel secured Within the opening and extending into the container, a hollow plunger slidable in the barrel and projecting from the neck, a nozzle on the plunger communicating with the interior of the plunger thereof and disposed exteriorly of the neck, a piston in the plunger and on which the plunger is movable, lugs on the plunger engaging the piston for securing the plunger against displacement outwardly of the barrel, a port in the piston, a valve for the port, a tube secured to the piston, communicating with the port and disposed within the container with its inner end spaced from the walls of the container, a pin engaging the t'ube and barrel for securing the tube and piston against movement in the barrel ani a spring in the plunger engaging the piston for urging the plunger outwardly of the barrel.

2. A combination as embodied in claim 1, wherein the plunger is rotatable in the barrel to adjust the position of said nozzle circumferentially, and a finger seat on the outer end of the plunger paralleling the nozzle.

3. A combination as embodied in claim 1, wherein the barrel is provided with a collar and a shoulder between which the cap is clamped, a washer between the cap and neck, and a gasket between the washer and cap.

4. A spray pump for portable liquid containers, comprising; a cap; a barrel secured to and extending through the cap, a hollow plunger slidable in the barrel; a valved piston in the plunger on which the latter is slidable; an outlet nozzle on the plunger; a tube communicating with the interior of the plungerthrough the piston, and xed to the piston and barrel in a manner to secure the piston against movement in the barrel; and a spring in the plunger engaging the piston for urging the plunger outwardly on the piston.

5. A spray pump, comprising; a support; a barrel fixed to and extending through the support; a hollow plunger slidable and rotatable in the bariel; a valved piston on which the hollow plunger slides and rotates; a tube communieating with the interior of the plunger through the piston and fixed to the piston and barrel; a nozzle on the plunger communicating with the interior thereof; a spring in the plunger engaging the piston for urging the plunger in one direction on the piston; and means for limiting movement of the plunger under the action of said urging means.

6. In combination, a bottle cap; a pump barrel secured to and projecting from the inner side of the cap; a hollow plunger reciprocable in said barrel and cap'and projecting to the outer side of the cap; means for urging the plunger to the outer side of the cap; a tube secured to the barrel; a valved piston secured to the tube and disposed within the plunger; means on the plunger engaging the piston for securing the plunger against displacement from the barrel under the action of said urging means; and a nozzle on the plunger communicating with the interior thereof.

7. A combination as embodied in claim 6, wherein the nozzle is disposed radially of the plunger, and the plunger is rotatable in the barrel to permit of a circumferential adjustment of the nozzle.

EARL W. MOODY. 

